Tissue-specific bioaccumulation of a wide range of legacy and emerging persistent organic contaminants in swordfish (Xiphias gladius) from Seychelles, Western Indian Ocean

Type Article
Date 2020-09
Language English
Author(s) Munschy Catherine1, Bely Nadege1, Heas-Moisan Karine1, Olivier Nathalie1, Pollono Charles1, Hollanda S.2, Bodin Nathalie2, 3
Affiliation(s) 1 : IFREMER (French Research Institute for Exploitation of the Sea), Laboratory of Biogeochemistry of Organic Contaminants, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 3, France
2 : SFA (Seychelles Fishing Authority), Fishing Port, Victoria, Mahé, Seychelles
3 : IRD (French Research Institute for Sustainable Development), Fishing Port, Victoria, Mahé, Seychelles
Source Marine Pollution Bulletin (0025-326X) (Elsevier BV), 2020-09 , Vol. 158 , P. 111436 (10p.)
DOI 10.1016/j.marpolbul.2020.111436
WOS© Times Cited 5
Keyword(s) Persistent organic pollutants (POPs), Brominated flame retardants, Perfluoroalkyl substances, Synthetic musks, Organotropism, Large pelagic fish
Abstract

Swordfish (Xiphias gladius) is a major marine resource of high economic value to industrial and artisanal fisheries. As a top predator with a long lifespan, it is prone to accumulate high levels of contaminants. The bioaccumulation of a wide range of both legacy and emerging persistent organic contaminants was investigated in the muscle, liver and gonads of swordfish collected from the Seychelles, western Indian Ocean. The detection of all target contaminants, some at frequencies above 80%, highlights their widespread occurrence, albeit at low levels. Mean concentrations in muscle were 5637, 491 and 331 pg g−1 ww for organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and perfluoroalkyl substances (PFASs), respectively. ∑BFR mean concentrations were far below, i.e. 47 pg g−1 ww. The data are among the first obtained for such a high diversity of contaminants in an oceanic top predator worldwide and constitute a benchmark of the contamination of Indian Ocean ecosystems.

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Munschy Catherine, Bely Nadege, Heas-Moisan Karine, Olivier Nathalie, Pollono Charles, Hollanda S., Bodin Nathalie (2020). Tissue-specific bioaccumulation of a wide range of legacy and emerging persistent organic contaminants in swordfish (Xiphias gladius) from Seychelles, Western Indian Ocean. Marine Pollution Bulletin, 158, 111436 (10p.). Publisher's official version : https://doi.org/10.1016/j.marpolbul.2020.111436 , Open Access version : https://archimer.ifremer.fr/doc/00640/75210/